19649015

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{2801}}^1$

素因数の和:2890

約数の個数: 16

約数和(自身を含む): 25016256

約数和(自身を除く): 5367241

約数列:

[1, 5, 23, 61, 115, 305, 1403, 2801, 7015, 14005, 64423, 170861, 322115, 854305, 3929803, 19649015]

約数ペア:

[(1, 19649015), (5, 3929803), (23, 854305), (61, 322115), (115, 170861), (305, 64423), (1403, 14005), (2801, 7015)]